drm/xe: Use usleep_range for accurate long-running workload timeslicing

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commit 80f9c601d9 upstream.

msleep is not very accurate in terms of how long it actually sleeps,
whereas usleep_range is precise. Replace the timeslice sleep for
long-running workloads with the more accurate usleep_range to avoid
jitter if the sleep period is less than 20ms.

Fixes: dd08ebf6c3 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Cc: stable@vger.kernel.org
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patch.msgid.link/20251212182847.1683222-3-matthew.brost@intel.com
(cherry picked from commit ca415c4d4c)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Matthew Brost 2025-12-12 10:28:42 -08:00 • committed by Greg Kroah-Hartman

parent d420cea519

commit dd3278ebfc

1 changed files with 19 additions and 1 deletions

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drivers/gpu/drm/xe/xe_guc_submit.c

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